Valve for gas-furnaces



(No Model.)

P. R. DILLON. VALVE FOR GAS FURNACES.

Patented Dec. 5, 1893.

UNITED STATES PATENT OFFICE.

PATRICK R. DILLON, OF PITTSBURG, PENNSYLVANIA.

VALVE FOR GAS-FU RNAC ES.

SPECIFICATION forming part of LettersPatent No. 510,008, dated December5, 1893.

Application filed November 16, 1892. Serial No. 452,152. [No model.)

To a whom it may concern.-

Be it known that I, PATRICK R. DILLON, of Pittsburg, in the county ofAllegheny and State of Pennsylvania, have invented a new and usefulImprovement in Valves for Gas- Furnaces, of which the following is afull, clear, and exact description, reference being had to theaccompanying drawings, forming part of this specification, in which---Figure 1 is a side elevation, partly in section, on the line E-E of Fig.4. Fig. 2 is a vertical sectional view on the line AA of Fig. 3. Fig. 3is a horizontal sectional view on the line Bl) of Fig. 2; and Fig.4 is aplan View.

Like figures of reference indicate like wherever they occur.

As is well known, great trouble has been experienced. with valves forgas furnaces, owing to the effect of the heat on the valvechamber andbutterfly, the heat warping,cntting and destroying the same, so that ina short time they .leak gas and have to be replaced at considerable costof time, labor, and material.

The object of my invention is to obviate the loss incident to thefrequent replacement or renewal of the valves, by protecting the valvefrom the injurious effect of the heat and to this end it consists inappliances whereby the several parts of the valve chamber and the valveor butterfly are kept cool by a flow of water or other cooling mediumthrough or around the same.

I will now describe my invention so that others skilled in the art maymanufacture and use the same.

Referring to the drawings, 15 represents the valve-chamber, which may beof the usual form. Completely surrounding this chamber, is a water-tightjacket or shell 7 between which shell and the valve chamber 15 is asnfflcient space to allow for the free circulation of water around thechamber, the purpose of which is to keep the valve chamber cool, andthereby prevent the heat from cutting, warping, or injuring the walls ofthe same. Leading into the water chamber 7, at the bottom of the same,is a water supply pipe 5. At the opposite side and at the top of thewater chamber is the water outlet pipe 6, which allows the water to passfrom the parts water chamber. The valve or butterfly 11 is hollowthroughout, so as to allow water to circulate through all parts of thesame. This butterfly is keyed by the pin 13 to a hollow perforatedspindle 10, which is provided with a stufflng-box at each end and isthere connected with the water supply pipe 14 and water outlet pipe 4:.Midway in the spindle 10, is the solid partition 12, which, stopping thedirect flow of water through the spindle, causes it to pass into thebody of the hollow valve through the perforations 2, and thence thewater again entering the spindle 10 through the perforations 3, passesout through the outlet pipe 4.

The advantages of my improvement are that the Water is caused tocirculate around all parts of the valve chamber and through the valveitself, so that the valve and chamber being kept cool are prevented frombeing destroyed and injured by the heat, thereby efieeting a greatsaving in time, labor and material.

I claim- 1. In a valve for gas furnaces, the combination of thevalve-chamber, a water jacket inclosing the same, a hollow valve,aspindlein the form of a tube having openings into the cavity of thevalve, and a bent pipe connecting the valve-spindle and the waterjacket; substantially as described.

2. In a valve for gas furnaces, the combination of a hollow valve, and ahollow spindle having a partition midway of its length within the valve,and having perforations leading to and from the cavity of the valve onopposite sides of the partition; substantially as described.

3. In a valve for gas furnaces, the combination of the valve chamber, awater jacket inclosing the the same, a hollow valve, a hollow spindleopening into the cavity of the valve, a bent pipe connecting thevalve-spindle and the water jacket, and an inlet pipe leading to thebent pipe; substantially as described.

In testimony whereof I have hereunto set my hand.

PATRICK R. DILLON.

Witnesses:

W. B. CORWIN, JAMES K. BAKEWELL.

